Vulnerability-Lookup

GHSA-8W6H-4J66-VMWQ

Vulnerability from github – Published: 2026-04-24 15:32 – Updated: 2026-04-24 15:32

Details

In the Linux kernel, the following vulnerability has been resolved:

drm/xe: Fix missing runtime PM reference in ccs_mode_store

ccs_mode_store() calls xe_gt_reset() which internally invokes xe_pm_runtime_get_noresume(). That function requires the caller to already hold an outer runtime PM reference and warns if none is held:

[46.891177] xe 0000:03:00.0: [drm] Missing outer runtime PM protection [46.891178] WARNING: drivers/gpu/drm/xe/xe_pm.c:885 at xe_pm_runtime_get_noresume+0x8b/0xc0

Fix this by protecting xe_gt_reset() with the scope-based guard(xe_pm_runtime)(xe), which is the preferred form when the reference lifetime matches a single scope.

v2: - Use scope-based guard(xe_pm_runtime)(xe) (Shuicheng) - Update commit message accordingly

(cherry picked from commit 7937ea733f79b3f25e802a0c8360bf7423856f36)

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31547"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-24T15:16:28Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Fix missing runtime PM reference in ccs_mode_store\n\nccs_mode_store() calls xe_gt_reset() which internally invokes\nxe_pm_runtime_get_noresume(). That function requires the caller\nto already hold an outer runtime PM reference and warns if none\nis held:\n\n  [46.891177] xe 0000:03:00.0: [drm] Missing outer runtime PM protection\n  [46.891178] WARNING: drivers/gpu/drm/xe/xe_pm.c:885 at\n  xe_pm_runtime_get_noresume+0x8b/0xc0\n\nFix this by protecting xe_gt_reset() with the scope-based\nguard(xe_pm_runtime)(xe), which is the preferred form when\nthe reference lifetime matches a single scope.\n\nv2:\n- Use scope-based guard(xe_pm_runtime)(xe) (Shuicheng)\n- Update commit message accordingly\n\n(cherry picked from commit 7937ea733f79b3f25e802a0c8360bf7423856f36)",
  "id": "GHSA-8w6h-4j66-vmwq",
  "modified": "2026-04-24T15:32:33Z",
  "published": "2026-04-24T15:32:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31547"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/65d046b2d8e0d6d855379a981869005fd6b6a41b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c409ecce9adcf815e86bc2f68834982e5a9c4e76"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-31547 (GCVE-0-2026-31547)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:33 – Updated: 2026-04-24 14:33

Title

drm/xe: Fix missing runtime PM reference in ccs_mode_store

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix missing runtime PM reference in ccs_mode_store ccs_mode_store() calls xe_gt_reset() which internally invokes xe_pm_runtime_get_noresume(). That function requires the caller to already hold an outer runtime PM reference and warns if none is held: [46.891177] xe 0000:03:00.0: [drm] Missing outer runtime PM protection [46.891178] WARNING: drivers/gpu/drm/xe/xe_pm.c:885 at xe_pm_runtime_get_noresume+0x8b/0xc0 Fix this by protecting xe_gt_reset() with the scope-based guard(xe_pm_runtime)(xe), which is the preferred form when the reference lifetime matches a single scope. v2: - Use scope-based guard(xe_pm_runtime)(xe) (Shuicheng) - Update commit message accordingly (cherry picked from commit 7937ea733f79b3f25e802a0c8360bf7423856f36)

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/c409ecce9adcf815e…
	https://git.kernel.org/stable/c/65d046b2d8e0d6d85…

Impacted products

Vendor

Product

Version

Linux

Affected: 480b358e7d8ef69fd8f1b0cad6e07c7d70a36ee4 , < c409ecce9adcf815e86bc2f68834982e5a9c4e76 (git)
Affected: 480b358e7d8ef69fd8f1b0cad6e07c7d70a36ee4 , < 65d046b2d8e0d6d855379a981869005fd6b6a41b (git)

Linux

Affected: 6.19
Unaffected: 0 , < 6.19 (semver)
Unaffected: 6.19.10 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_gt_ccs_mode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c409ecce9adcf815e86bc2f68834982e5a9c4e76",
              "status": "affected",
              "version": "480b358e7d8ef69fd8f1b0cad6e07c7d70a36ee4",
              "versionType": "git"
            },
            {
              "lessThan": "65d046b2d8e0d6d855379a981869005fd6b6a41b",
              "status": "affected",
              "version": "480b358e7d8ef69fd8f1b0cad6e07c7d70a36ee4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_gt_ccs_mode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.10",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Fix missing runtime PM reference in ccs_mode_store\n\nccs_mode_store() calls xe_gt_reset() which internally invokes\nxe_pm_runtime_get_noresume(). That function requires the caller\nto already hold an outer runtime PM reference and warns if none\nis held:\n\n  [46.891177] xe 0000:03:00.0: [drm] Missing outer runtime PM protection\n  [46.891178] WARNING: drivers/gpu/drm/xe/xe_pm.c:885 at\n  xe_pm_runtime_get_noresume+0x8b/0xc0\n\nFix this by protecting xe_gt_reset() with the scope-based\nguard(xe_pm_runtime)(xe), which is the preferred form when\nthe reference lifetime matches a single scope.\n\nv2:\n- Use scope-based guard(xe_pm_runtime)(xe) (Shuicheng)\n- Update commit message accordingly\n\n(cherry picked from commit 7937ea733f79b3f25e802a0c8360bf7423856f36)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-24T14:33:15.262Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c409ecce9adcf815e86bc2f68834982e5a9c4e76"
        },
        {
          "url": "https://git.kernel.org/stable/c/65d046b2d8e0d6d855379a981869005fd6b6a41b"
        }
      ],
      "title": "drm/xe: Fix missing runtime PM reference in ccs_mode_store",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31547",
    "datePublished": "2026-04-24T14:33:15.262Z",
    "dateReserved": "2026-03-09T15:48:24.114Z",
    "dateUpdated": "2026-04-24T14:33:15.262Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-8W6H-4J66-VMWQ

CVE-2026-31547 (GCVE-0-2026-31547)

Tags

Sightings

Nomenclature